| // Copyright 2017 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // Make sure extern types are !Sync and !Send. |
| |
| #![feature(extern_types)] |
| |
| extern { |
| type A; |
| } |
| |
| fn assert_sync<T: ?Sized + Sync>() { } |
| fn assert_send<T: ?Sized + Send>() { } |
| |
| fn main() { |
| assert_sync::<A>(); |
| //~^ ERROR `A` cannot be shared between threads safely [E0277] |
| |
| assert_send::<A>(); |
| //~^ ERROR `A` cannot be sent between threads safely [E0277] |
| } |
